Refactoring gamepad polling to support dynamically added sources

content/content_browser.gypi

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'dependencies': [
     '../base/base.gyp:base_static',
     '../components/url_formatter/url_formatter.gyp:url_formatter',
     '../crypto/crypto.gyp:crypto',
     '../device/battery/battery.gyp:device_battery',
@@ skipping 725 matching lines @@
       'browser/frame_host/render_frame_host_manager.h',
       'browser/frame_host/render_frame_message_filter.cc',
       'browser/frame_host/render_frame_message_filter.h',
       'browser/frame_host/render_frame_proxy_host.cc',
       'browser/frame_host/render_frame_proxy_host.h',
       'browser/frame_host/render_widget_host_view_child_frame.cc',
       'browser/frame_host/render_widget_host_view_child_frame.h',
       'browser/frame_host/render_widget_host_view_guest.cc',
       'browser/frame_host/render_widget_host_view_guest.h',
       'browser/gamepad/gamepad_consumer.h',
+      'browser/gamepad/gamepad_data_fetcher.cc',
       'browser/gamepad/gamepad_data_fetcher.h',
-      'browser/gamepad/gamepad_data_fetcher.cc',
       'browser/gamepad/gamepad_platform_data_fetcher.h',
       'browser/gamepad/gamepad_platform_data_fetcher_android.cc',
       'browser/gamepad/gamepad_platform_data_fetcher_android.h',
       'browser/gamepad/gamepad_platform_data_fetcher_linux.cc',
       'browser/gamepad/gamepad_platform_data_fetcher_linux.h',
       'browser/gamepad/gamepad_platform_data_fetcher_mac.h',
       'browser/gamepad/gamepad_platform_data_fetcher_mac.mm',
       'browser/gamepad/gamepad_platform_data_fetcher_win.cc',
       'browser/gamepad/gamepad_platform_data_fetcher_win.h',
       'browser/gamepad/gamepad_provider.cc',
       'browser/gamepad/gamepad_provider.h',
       'browser/gamepad/gamepad_service.cc',
       'browser/gamepad/gamepad_service.h',
       'browser/gamepad/gamepad_standard_mappings.cc',
       'browser/gamepad/gamepad_standard_mappings.h',
       'browser/gamepad/gamepad_standard_mappings_linux.cc',
       'browser/gamepad/gamepad_standard_mappings_mac.mm',
       'browser/gamepad/gamepad_standard_mappings_win.cc',
       'browser/gamepad/raw_input_data_fetcher_win.cc',
       'browser/gamepad/raw_input_data_fetcher_win.h',
-      'browser/gamepad/xbox_data_fetcher_mac.cc',
+      'browser/gamepad/xbox_data_fetcher_mac.mm',
       'browser/gamepad/xbox_data_fetcher_mac.h',
       'browser/geofencing/geofencing_dispatcher_host.cc',
       'browser/geofencing/geofencing_dispatcher_host.h',
       'browser/geofencing/geofencing_manager.cc',
       'browser/geofencing/geofencing_manager.h',
       'browser/geofencing/geofencing_provider.h',
       'browser/geofencing/geofencing_registration_delegate.h',
       'browser/geofencing/geofencing_service.cc',
       'browser/geofencing/geofencing_service.h',
       'browser/geofencing/mock_geofencing_service.cc',
@@ skipping 1051 matching lines @@
     '<@(public_browser_sources)',
     '<@(private_browser_sources)',
   ],
   'conditions': [
     ['OS != "win"', {
       'sources': [
         'browser/file_descriptor_info_impl.cc',
         'browser/file_descriptor_info_impl.h',
       ]
     }],
-    ['OS!="win" and OS!="mac" and OS!="android" and (OS!="linux" or use_udev==0)', {
-      'sources': [
-        'browser/gamepad/gamepad_platform_data_fetcher.cc',
-      ]
-    }],
     ['OS=="ios"', {
       'sources/': [
         # iOS only needs a small portion of content; exclude all the
         # implementation, and re-include what is used.
         ['exclude', '\\.(cc|mm)$'],
         ['include', '^public/browser/navigation_details\\.cc$'],
         ['include', '^public/browser/page_navigator\\.cc$'],
         ['include', '^browser/browser_context\\.cc$'],
       ],
     }, {  # OS!="ios"
@@ skipping 354 matching lines @@
     ['enable_webvr==1 and OS=="android"', {
       'sources': [
         'browser/vr/android/cardboard/cardboard_vr_device.cc',
         'browser/vr/android/cardboard/cardboard_vr_device.h',
         'browser/vr/android/cardboard/cardboard_vr_device_provider.cc',
         'browser/vr/android/cardboard/cardboard_vr_device_provider.h',
       ],
     }],
   ],
 }